Dental bridgework.



J. B. MORGAN. DENTAL BRIDGEWGHK'.

' rApplim-mn med .rune 12, 1900.) 'No Model?) Pamnm may 2|, leur.

Ef/guia l INVENTOR l W/T/vhslsysv a. s. MORGAN.

DENTAL BRIDGEWORK. (Application fixed .fue 12, 1900.)` (No Model.)

Patented May 2|, |9ol.

2 Sheets-Sheet 2..

n {NVE/wmp.' WJT/VESSES.- y

UNirriii BTATES PAT Umlmn sinensis;MORGAN', oF nnvsnron'r, ic'vvA.,V

oen-rm. .eRrDoswoRKf l SPECIFICATION farming* part of Letters Patent No. 674,449, datedday 2l, 190 1. M I l' '4 l Application iiled Juno'IZJQQO. Seriallld`2050. (Nullen-dein I i y ToaZ/l wil/mn. it may concern: y,

Be it knownv that I, JAMES B. MORGAN, a citizen of the United States, residingat Dav-v enport, in the connty'of Scottv and State of Iowa, have `invented certain new and useful Improvements in Dental Bridgevrork,;` and I Vdo hereby declare the following lo `he a full,

clear, and exact description of. the invention,

such as will enable others skilled in the art.

to which 'it appertains same.

to malie and use the The object; is .in bridge-work to presenta ready, simple, ihoronghly-eicient,and d nra,

ble means to secure false teeth in position against the gums and to permit a ready ref moval of such teeth for purposesof cleansing, &c.

"he invention consists in the novel con-y struction and combination of parts of a hrid ge system in dentistry, as will he fully described and claimed hereinafter. l

In the accompanying drawings, forming a part of this specification, and in which like letters of reference indicate corresponding parts, I have illustrated a few of many Ways of carrying my invention into effect, it being understood that I do not limit myself to the precise arrangement of part-s herein shown. In the drawings, Figure 1 is aview in plan of the keeper. Fig. 2 is a view in betteln plan of the anchor. Fig. 3 is n View in top planof the same. Fig. 4 is a View in side elevation of the anchor. Fig. 5 -is e View in plan, showing, diagrammaticelly, one-half of the roof of a human month, exhibiting the keeper in position upon two teeth. Fig. 6 is a view intop plan, exhibiting a plate to which Vthe anchors are secured, the teeth being indicatedin dotted lines. F' 7 is a `view in side elevation', exhibiting the arrangements shown in Figs. 5 and 6, the false teeth being in position. Fig. Sis a view in side elevation of apart of the upper jaw, exhibiting another manner of carrying my invention into e'eot. Fig 9 is a view in side elevation, exhibiting still another manner of carrying my invention into effect. Fig. 10 is a view, in

plan, exhibiting the false teeth used in eqnnection with the arrangement shown in Fig. 9, displnyngl the manner in which theseteeth are held in place. Fig. 11 is a 'view in plan,

exhibiting still another manner of carrying' secured, as b'yrivets, to

lain, secured ,to

my invention inlo effect in connection with the teeth of the lower jaw; and Fig. 12 islav view in elevation,v exhibiting still anothergg manner of carrying my invention into effect.'

The gist of the invention resides in an an'- choring device coiinpi-'ising-af keeper A and an anchor B. The keeper, as exhibited in Fig. l, comprises a bandol' metal having its back 6o cui-red outward and provided with two in'- ward-curved longues or arms a. The 'anchor j B comprises a plaie .b to engage the space e` tween ythe back ofthe keeper'andthe ar'. milf and is curved, a cap ifi-(shown in4 Fig' W65 and a loop or shank b3. Both of these parl that is. to say, the keeper and the anch( l are preferably made of-spring-'gold when used" in connection with. gold crowns, and where used inconnection with l porcelain bridges the"f`7e arms may be of spring-gold and the loop-fori shank of platinum. l 'ff The material in which ihe false tooth iiseil*V is set may yhe porcelain,gcld, silver, rubber; whitemetal, or any of the lusual materials '75 used in dentistry for such purposes.

In carrying my invention into ecct 'the keeper A is firmly soldered to the melfil crown, as shown in Fig. 5, or maybe soldered toa. metal hand a2, as shown in Fig. l2. The 8o anchor where used in connection with either a White-metal plate or with bridgcwork made of gold or other metal is soldered to or cast into such instel, with the arms extending oeyend the plete a su llicient distance to engage the keepers, as shown in Fig. 6. Vv'here the device is used in connection with rubber, celluloid, er the like, .as shown. in Fig. 11, the keeper, as usual, is soldered to the crown or to the band on the tooth and the anchor is 9o embedded in the material carrying the false teeth.

As exhibiting the dierent positions in which my invention may be employed'for securing various teethin place, in Fig. 5 s gold 95` crown is shown as securing a bicnspid and a molar, the keeper being soldered or otherwise' the crown. i

vIn Fig. 7, which is aside' elevation of the s .rrangen!entfshown,l in Fig. 5, thev hicuspid :oo and molar are clearly shown and the inter-, mediate glise teeth sire preferably of perce.. ti'. "internetal backing'cr it seing understood plate shownl inv 'that this plate may also be made of gold or "other metal, if preferred.

In Fig. 8 I have shown my invention as ap- Y plied to two crowned teeth, one being a bi` cuspid andthe other a. molar, these two teeth carrying the keepers, and the intermediate "-,false teeth, one a bicuspid and the other a molar, being of gold.

- `In Figs. 9 and 10 I have shown my inven-A :onliou as applied to four' front teeth-that is to fsa'y, the four incisors.

In this instance the front teeth are of vporcelain and are secured to a rubber plate, to whichlatter are securql two arms b4, of gold, carrying the anchors B.

The keeper in this embodiment of myinven;

.tion is shown as secured to the second bienspid, whichV is cfnvered by a gold crown, the vcrown either to"inclose `the tooth or tube se- "cnred to a root. Itis to he understood in all the embod ments of my invention that the crown may either iriclose a tooth o: may be secured to a In Fig. 11 I have` shown my invention as applied to the teeth of the lower jaw, in which l the molars and one bicuspid ou each side are false, the rst bicuspid being provided with a crown carrying the keeper, and the false teeth beingr carried by an ordinary celluloid or vul- A3 canized-ruliber plate fitting the gum, as usual, the incisors and canine teeth being natural. In Fig. 12 I have shown my invention as applied to a. band secured around a tooth, the band to carry the keeper. By the arrangements herein shown la firm and stable connection will be. effected between the false teeth, carrying the, anchor, and the crowned tooth or banded tooth, carrying the keeper, and as contact betre n the false tooth and the gum will be direct strain will practically be removed from theanchorvlong ing device, so that to all intents and purposes the false tooth will be as sound and stable forA all uses of masticaton or the like as would be a natural tooth. By the arrangement shown the false teeth may be disconnected from the natural teeth with readiness and ease and should the union between these parts at any time becomel oose it will only be necessary v either to pinch in the arms of the keeper o r to straighten out the arms of the anchor, thus to take u p any looseness that may result from use. Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent of the United States, is- 1. An ,anchoring device for bridgework, comprising a two tongned or armed, curved vkeeper to be soldered or otherwise secured to a metal crown, or to a band on a natural tooth, and an anchor having a two-armed 'head to engage the keeper, and a loop or shank to be frnilysoldered to or embedded in the material to which the false teethare or may be secured, substantiallyas described;

2. An anchoring device for bridgework, comprising a two tongued or armed, curved keeper to be soldered or otherwise secured to JAMES B. MORGAN.l

Witnesses:

L. Essnnn, W. R. MAINES. 

